How to activate key repetition through the macOS Terminal

In macOS, if you press and hold down certain keys on your keyboard, a palette appears, showing you accented or alternate characters that you can choose. For example, if you press and hold down the letter O, a palette with ô, ö, ò, ó, œ, ø, ō, and õ appears, each with a number underneath. Press the number that corresponds to the character you want.Because of that feature, though, you can no longer press and hold keys to make them repeat, making it